Study of the effect of laponite on Fricke xylenol orange gel dosimeter by optical techniques
Articolo
Data di Pubblicazione:
2018
Citazione:
Study of the effect of laponite on Fricke xylenol orange gel dosimeter by optical techniques / S. Gallo, L. Cremonesi, G.L.C. Gambarini, L. Ianni, C. Lenardi, S. Argentiere, D. Bettega, M. Gargano, N.G. Ludwig, I. Veronese. - In: SENSORS AND ACTUATORS. B, CHEMICAL. - ISSN 0925-4005. - 272(2018 Nov 01), pp. 618-625. [10.1016/j.snb.2018.05.153]
Abstract:
Optical absorbance and dynamic light scattering studies of Fricke xylenol orange gel dosimeters loaded with
laponite were carried out with the aim to investigate possible effects of nanoparticles on the dosimetric properties
and diffusion phenomena of ferric ions. A procedure for incorporating laponite nano-sized clay particles
into the gel dosimeters, prepared using porcine gelatine as gelling agent, was successfully developed. The shape
of the optical absorbance spectra of the gel dosimeters in the wavelength interval 350–750 nm have shown a
slight dependence on the nanoparticles concentration and varied with the absorbed dose. All studied gel exhibited
a linear dose response in the investigated interval 0–22 Gy. Neither the sensitivity to the radiation dose
nor the diffusion coefficient were significantly altered by the addition of laponite into the Fricke xylenol orange
gel formulation employed.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Fricke gel dosimeter; optical absorbance spectra; diffusion coefficient; laponite; dynamic light scattering
Elenco autori:
S. Gallo, L. Cremonesi, G.L.C. Gambarini, L. Ianni, C. Lenardi, S. Argentiere, D. Bettega, M. Gargano, N.G. Ludwig, I. Veronese
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